• Tejun Heo's avatar
    libata: update libata LLDs to use devres · 24dc5f33
    Tejun Heo authored
    Update libata LLDs to use devres.  Core layer is already converted to
    support managed LLDs.  This patch simplifies initialization and fixes
    many resource related bugs in init failure and detach path.  For
    example, all converted drivers now handle ata_device_add() failure
    gracefully without excessive resource rollback code.
    As most resources are released automatically on driver detach, many
    drivers don't need or can do with much simpler ->{port|host}_stop().
    In general, stop callbacks are need iff port or host needs to be given
    commands to shut it down.  Note that freezing is enough in many cases
    and ports are automatically frozen before being detached.
    Signed-off-by: default avatarTejun Heo <htejun@gmail.com>
    Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>